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001 001
002 002
003 003
004 004
005 005
006 006
007 007
008 008
009 009
010 010
011 011
012 012
013 013
014 014
015 015
016 016
017 017
018 018
019 019
020 #include "klibc.h" 020 #include "klibc.h"
021 021
022 022
023 void *memcpy(void *dst0, const void *src0, reg 023 void *memcpy(void *dst0, const void *src0, register unsigned int size)
024 { 024 {
025 char *dst; 025 char *dst;
026 const char *src; 026 const char *src;
027 for (dst = (char*)dst0, src = (const char*)s 027 for (dst = (char*)dst0, src = (const char*)src0 ;
028 size > 0 ; 028 size > 0 ;
029 dst++, src++, size--) 029 dst++, src++, size--)
030 *dst = *src; 030 *dst = *src;
031 return dst0; 031 return dst0;
032 } 032 }
033 033
034 034
035 void *memset(void *dst0, register int c, regis 035 void *memset(void *dst0, register int c, register unsigned int length)
036 { 036 {
037 char *dst; 037 char *dst;
038 for (dst = (char*) dst0 ; 038 for (dst = (char*) dst0 ;
039 length > 0 ; 039 length > 0 ;
040 dst++, length --) 040 dst++, length --)
041 *dst = (char)c; 041 *dst = (char)c;
042 return dst0; 042 return dst0;
043 } 043 }
044 044
045 int memcmp(const void *s1, const void *s2, sos 045 int memcmp(const void *s1, const void *s2, sos_size_t len)
046 { 046 {
047 const unsigned char *c1, *c2; 047 const unsigned char *c1, *c2;
048 unsigned int i; 048 unsigned int i;
049 049
050 for (i = 0, c1 = s1, c2 = s2; i < len; i++, 050 for (i = 0, c1 = s1, c2 = s2; i < len; i++, c1++, c2++)
051 { 051 {
052 if(*c1 != *c2) 052 if(*c1 != *c2)
053 return *c1 - *c2; 053 return *c1 - *c2;
054 } 054 }
055 055
056 return 0; 056 return 0;
057 } 057 }
058 058
059 059
060 unsigned int strlen(register const char *str) 060 unsigned int strlen(register const char *str)
061 { 061 {
062 unsigned int retval = 0; 062 unsigned int retval = 0;
063 063
064 while (*str++) 064 while (*str++)
065 retval++; 065 retval++;
066 066
067 return retval; 067 return retval;
068 } 068 }
069 069
070 070
071 unsigned int strnlen(const char * s, sos_size_ 071 unsigned int strnlen(const char * s, sos_size_t count)
072 { 072 {
073 const char *sc; 073 const char *sc;
074 074
075 for (sc = s; count-- && *sc != '\0'; ++sc) 075 for (sc = s; count-- && *sc != '\0'; ++sc)
076 continue; 076 continue;
077 077
078 return sc - s; 078 return sc - s;
079 } 079 }
080 080
081 081
082 char *strzcpy(register char *dst, register con 082 char *strzcpy(register char *dst, register const char *src, register int len)
083 { 083 {
084 int i; 084 int i;
085 085
086 if (len <= 0) 086 if (len <= 0)
087 return dst; 087 return dst;
088 088
089 for (i = 0; i < len; i++) 089 for (i = 0; i < len; i++)
090 { 090 {
091 dst[i] = src[i]; 091 dst[i] = src[i];
092 if(src[i] == '\0') 092 if(src[i] == '\0')
093 return dst; 093 return dst;
094 } 094 }
095 095
096 dst[len-1] = '\0'; 096 dst[len-1] = '\0';
097 return dst; 097 return dst;
098 } 098 }
099 099
100 100
101 char *strzcat (char *dest, const char *src, so 101 char *strzcat (char *dest, const char *src, sos_size_t n)
102 { 102 {
103 char *res = dest; 103 char *res = dest;
104 104
105 for ( ; *dest ; dest++); 105 for ( ; *dest ; dest++);
106 106
107 for ( ; *src ; src++, dest++) { 107 for ( ; *src ; src++, dest++) {
108 *dest = *src; 108 *dest = *src;
109 n--; 109 n--;
110 if (n <= 0) 110 if (n <= 0)
111 break; 111 break;
112 } 112 }
113 113
114 *dest = '\0'; 114 *dest = '\0';
115 return res; 115 return res;
116 } 116 }
117 117
118 int strcmp(register const char *s1, register c 118 int strcmp(register const char *s1, register const char *s2)
119 { 119 {
120 while (*s1 == *s2++) 120 while (*s1 == *s2++)
121 if (*s1++ == 0) 121 if (*s1++ == 0)
122 return (0); 122 return (0);
123 123
124 return (*(const unsigned char *)s1 - *(const 124 return (*(const unsigned char *)s1 - *(const unsigned char *)(s2 - 1));
125 } 125 }
126 126
127 127
128 int strncmp(register const char *s1, register 128 int strncmp(register const char *s1, register const char *s2, register int len)
129 { 129 {
130 char c1 = '\0', c2 = '\0'; 130 char c1 = '\0', c2 = '\0';
131 131
132 while (len > 0) 132 while (len > 0)
133 { 133 {
134 c1 = (unsigned char) *s1++; 134 c1 = (unsigned char) *s1++;
135 c2 = (unsigned char) *s2++; 135 c2 = (unsigned char) *s2++;
136 if (c1 == '\0' || c1 != c2) 136 if (c1 == '\0' || c1 != c2)
137 return c1 - c2; 137 return c1 - c2;
138 len--; 138 len--;
139 } 139 }
140 140
141 return c1 - c2; 141 return c1 - c2;
142 } 142 }
143 143
144 144
145 145
146 146
147 int vsnprintf(char *buff, sos_size_t len, cons 147 int vsnprintf(char *buff, sos_size_t len, const char * format, va_list ap)
148 { 148 {
149 sos_size_t i, result; 149 sos_size_t i, result;
150 150
151 if (!buff || !format || (len < 0)) 151 if (!buff || !format || (len < 0))
152 return -1; 152 return -1;
153 153
154 #define PUTCHAR(thechar) \ 154 #define PUTCHAR(thechar) \
155 do { \ 155 do { \
156 if (result < len-1) \ 156 if (result < len-1) \
157 *buff++ = (thechar); \ 157 *buff++ = (thechar); \
158 result++; \ 158 result++; \
159 } while (0) 159 } while (0)
160 160
161 result = 0; 161 result = 0;
162 for(i=0 ; format[i] != '\0' ; i++){ 162 for(i=0 ; format[i] != '\0' ; i++){
163 switch (format[i]) 163 switch (format[i])
164 { 164 {
165 case '%': 165 case '%':
166 i++; 166 i++;
167 switch(format[i]) 167 switch(format[i])
168 { 168 {
169 case '%': 169 case '%':
170 { 170 {
171 PUTCHAR('%'); 171 PUTCHAR('%');
172 break; 172 break;
173 } 173 }
174 case 'i':; 174 case 'i':;
175 case 'd': 175 case 'd':
176 { 176 {
177 int integer = va_arg(ap,int); 177 int integer = va_arg(ap,int);
178 int cpt2 = 0; 178 int cpt2 = 0;
179 char buff_int[16]; 179 char buff_int[16];
180 180
181 if (integer<0) 181 if (integer<0)
182 PUTCHAR('-'); 182 PUTCHAR('-');
183 183
184 184
185 185
186 do { 186 do {
187 int m10 = integer%10; 187 int m10 = integer%10;
188 m10 = (m10 < 0)? -m10:m10; 188 m10 = (m10 < 0)? -m10:m10;
189 buff_int[cpt2++]=(char)('0'+ m 189 buff_int[cpt2++]=(char)('0'+ m10);
190 integer=integer/10; 190 integer=integer/10;
191 } while(integer!=0); 191 } while(integer!=0);
192 192
193 for(cpt2 = cpt2 - 1 ; cpt2 >= 0 193 for(cpt2 = cpt2 - 1 ; cpt2 >= 0 ; cpt2--)
194 PUTCHAR(buff_int[cpt2]); 194 PUTCHAR(buff_int[cpt2]);
195 195
196 break; 196 break;
197 } 197 }
198 198
199 case 'c': 199 case 'c':
200 { 200 {
201 int value = va_arg(ap,int); 201 int value = va_arg(ap,int);
202 PUTCHAR((char)value); 202 PUTCHAR((char)value);
203 break; 203 break;
204 } 204 }
205 205
206 case 's': 206 case 's':
207 { 207 {
208 char *string = va_arg(ap,char *) 208 char *string = va_arg(ap,char *);
209 if (! string) 209 if (! string)
210 string = "(null)"; 210 string = "(null)";
211 for( ; *string != '\0' ; string+ 211 for( ; *string != '\0' ; string++)
212 PUTCHAR(*string); 212 PUTCHAR(*string);
213 break; 213 break;
214 } 214 }
215 215
216 case 'x': 216 case 'x':
217 { 217 {
218 unsigned int hexa = va_arg(ap,in 218 unsigned int hexa = va_arg(ap,int);
219 unsigned int nb; 219 unsigned int nb;
220 int i, had_nonzero = 0; 220 int i, had_nonzero = 0;
221 for(i=0 ; i < 8 ; i++) 221 for(i=0 ; i < 8 ; i++)
222 { 222 {
223 nb = (unsigned int)(hexa << 223 nb = (unsigned int)(hexa << (i*4));
224 nb = (nb >> 28) & 0xf; 224 nb = (nb >> 28) & 0xf;
225 225
226 if (nb == 0) 226 if (nb == 0)
227 { 227 {
228 if (had_nonzero) 228 if (had_nonzero)
229 PUTCHAR('0'); 229 PUTCHAR('0');
230 } 230 }
231 else 231 else
232 { 232 {
233 had_nonzero = 1; 233 had_nonzero = 1;
234 if (nb < 10) 234 if (nb < 10)
235 PUTCHAR('0'+nb); 235 PUTCHAR('0'+nb);
236 else 236 else
237 PUTCHAR('a'+(nb-10)); 237 PUTCHAR('a'+(nb-10));
238 } 238 }
239 } 239 }
240 if (! had_nonzero) 240 if (! had_nonzero)
241 PUTCHAR('0'); 241 PUTCHAR('0');
242 break; 242 break;
243 } 243 }
244 break; 244 break;
245 245
246 default: 246 default:
247 PUTCHAR('%'); 247 PUTCHAR('%');
248 PUTCHAR(format[i]); 248 PUTCHAR(format[i]);
249 } 249 }
250 break; 250 break;
251 251
252 default: 252 default:
253 PUTCHAR(format[i]); 253 PUTCHAR(format[i]);
254 } 254 }
255 } 255 }
256 256
257 *buff = '\0'; 257 *buff = '\0';
258 return result; 258 return result;
259 } 259 }
260 260
261 261
262 int snprintf(char * buff, sos_size_t len, cons 262 int snprintf(char * buff, sos_size_t len, const char *format, ...)
263 { 263 {
264 va_list ap; 264 va_list ap;
265 265
266 va_start(ap, format); 266 va_start(ap, format);
267 len = vsnprintf(buff, len, format, ap); 267 len = vsnprintf(buff, len, format, ap);
268 va_end(ap); 268 va_end(ap);
269 269
270 return len; 270 return len;
271 } 271 }